On 1/29/21 5:38 AM, steve lund wrote: > > ...And everyone else who replied, yes, this does indeed look like a DMARC > issue. I looked at the help pages and it looks like some things can be > changed but from what I gather any changes would likely affect > functionality for the users. > > I am a member of a different list that munged the FROM header to the list > address with the down side that ALL replies had to go back through the list > even if it was specific to one individual. Not a great experience just to > pick up a few members who had AOL email domains.
Is this a Mailman list? Both Mailman 2.1 and Mailman 3 take pains to create Munged From messages which exhibit the same behavior for 'reply' and 'reply-all' as non-munged messages. Here's what we say: > # MAS: We need to do some things with the original From: if we've munged > # it for DMARC mitigation. We have goals for this process which are > # not completely compatible, so we do the best we can. Our goals are: > # 1) as long as the list is not anonymous, the original From: address > # should be obviously exposed, i.e. not just in a header that MUAs > # don't display. > # 2) the original From: address should not be in a comment or display > # name in the new From: because it is claimed that multiple domains > # in any fields in From: are indicative of spamminess. This means > # it should be in Reply-To: or Cc:. > # 3) the behavior of an MUA doing a 'reply' or 'reply all' should be > # consistent regardless of whether or not the From: is munged. > # Goal 3) implies sometimes the original From: should be in Reply-To: > # and sometimes in Cc:, and even so, this goal won't be achieved in > # all cases with all MUAs. In cases of conflict, the above ordering of > # goals is priority order. I.e. preserving 'reply' and 'reply all' behavior is goal 3, but note that "this goal won't be achieved in all cases with all MUAs". I.e. some MUAs that don't follow RFC recommendations for replying may not reply appropriately. This is an MUA issue. Mailman is doing the best it can. -- Mark Sapiro <m...@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list -- mailman-users@python.org To unsubscribe send an email to mailman-users-le...@python.org https://mail.python.org/mailman3/lists/mailman-users.python.org/ Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/ https://mail.python.org/archives/list/mailman-users@python.org/
